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5f21b925da
Co-authored-by: Synco Reynders <synco@deviceware.co.nz> Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
#include "ct_clamp_sensor.h"
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#include "esphome/core/log.h"
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#include <cmath>
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namespace esphome {
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namespace ct_clamp {
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static const char *const TAG = "ct_clamp";
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void CTClampSensor::dump_config() {
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LOG_SENSOR("", "CT Clamp Sensor", this);
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ESP_LOGCONFIG(TAG, " Sample Duration: %.2fs", this->sample_duration_ / 1e3f);
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LOG_UPDATE_INTERVAL(this);
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}
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void CTClampSensor::update() {
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// Update only starts the sampling phase, in loop() the actual sampling is happening.
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// Request a high loop() execution interval during sampling phase.
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this->high_freq_.start();
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// Set timeout for ending sampling phase
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this->set_timeout("read", this->sample_duration_, [this]() {
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this->is_sampling_ = false;
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this->high_freq_.stop();
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if (this->num_samples_ == 0) {
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// Shouldn't happen, but let's not crash if it does.
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this->publish_state(NAN);
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return;
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}
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float dc = this->sample_sum_ / this->num_samples_;
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float var = (this->sample_squared_sum_ / this->num_samples_) - dc * dc;
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float ac = std::sqrt(var);
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ESP_LOGD(TAG, "'%s' - Got %d samples", this->name_.c_str(), this->num_samples_);
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ESP_LOGD(TAG, "'%s' - Raw AC Value: %.3fA", this->name_.c_str(), ac);
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this->publish_state(ac);
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});
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// Set sampling values
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this->is_sampling_ = true;
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this->num_samples_ = 0;
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this->sample_sum_ = 0.0f;
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this->sample_squared_sum_ = 0.0f;
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}
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void CTClampSensor::loop() {
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if (!this->is_sampling_)
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return;
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// Perform a single sample
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float value = this->source_->sample();
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if (isnan(value))
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return;
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this->sample_sum_ += value;
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this->sample_squared_sum_ += value * value;
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this->num_samples_++;
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}
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} // namespace ct_clamp
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} // namespace esphome
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